Pancreatic tumor treatment methods are roughly divided into two categories, surgical resection and non-surgical treatment, and the killing effect of different methods on tumor is different. Surgical treatment 1. Tumor resection and lymph node dissection: It is the most commonly used surgical procedure and the only treatment that may cure pancreatic cancer. Unfortunately, less than 20% of the total number of patients with pancreatic cancer can be completely removed. 2.Palliative surgery: biliary-intestinal anastomosis and gastrojejunostomy are commonly used palliative surgeries, mainly for those who cannot remove the tumor completely, which can significantly correct biliary obstruction and gastrointestinal obstruction and can significantly improve the quality of life and delay the life of patients, especially gastrojejunostomy, which can free up space for radiotherapy for pancreatic head tumor. Palliative surgery has a certain probability of surgical complications, and its clinical application is not yet popular. Non-surgical treatment 1. Radiotherapy: including linear gas pedal, gamma knife, radioactive knife, X-knife, gyroscopic knife, radioactive particle implantation, and so on. From the available statistics, the average survival of high-dose and precise radiotherapy, mainly local conformal radiotherapy, is much higher than that of other treatments. 2.Chemotherapy: including systemic chemotherapy and local interventional chemotherapy, the effect of chemotherapy for some genetic types of pancreatic cancer is good, the size of side effects varies greatly among individuals, and interventional chemotherapy can be the local chemotherapy drug of the tumor to reach instant high concentration. 3.Cryotherapy: Ar-He knife, because there are many local treatment options for pancreatic cancer, Ar-He knife is generally less used for pancreatic cancer treatment. 4.Thermal therapy: There are several techniques of thermal therapy for tumor, the temperature from low to high are warm therapy (about 42°C), Hefei knife ((about 70°C), radiofrequency (about 100°C). 5.Chinese medicine, herbal medicine and nutritional support: pancreatic cancer involves digestive function, and the support of Chinese medicine and nutritional support have more room to perform in maintaining the physical ability of patients. The pancreatic function of pancreatic cancer patients is severely damaged, and nutritional support is a meticulous work, so it is recommended to consult the nutrition department of tertiary hospitals. Post-treatment evaluation mainly includes the following three aspects: 1. Mass size: original lesion (unchanged, enlarged, shrunken, disappeared), extra-pancreatic lesion mainly refers to surgery local, liver, retroperitoneal lymph nodes and intra-abdominal cavity (new, unchanged, enlarged, shrunken), regular follow-up and careful comparison can clearly show these signs. Follow-up interval (very important): for suspected pancreatic ductal adenocarcinoma, a follow-up interval of 3 to 6 months is appropriate; for suspected acute pancreatitis, a follow-up interval of about 1 month; for pancreatic tumors during radiotherapy or suspected benign/low malignancy, a follow-up interval of 6 to 12 months. Laboratory tests: CA19-9, liver function, jaundice index, bilirubin, blood glucose, etc. As the treatment process is easy to be complicated by cholangitis and pancreatitis, and there is an overlap between the laboratory manifestations of these diseases and pancreatic tumor, it should be considered when judging (the above indexes can be rechecked after appropriate anti-inflammatory and biliary treatment to observe the changes). 3. Symptoms: improvement, disappearance, aggravation. The symptoms that can be improved rapidly and obviously during the process of conservative treatment are mostly caused by inflammation. Since symptoms are subjective and affect many factors, the evaluation of the above three types of indicators, the most important change in the size of the mass found by standardized imaging (the most objective, easiest to implement, and most easily ignored), laboratory tests are second (more interference, more false negatives, more false positives), and subjective symptoms are for reference only.